Wall service-bushing for vacuum cleaning and other systems



H. M. UNDERWOOD. WALL SERVICE BUSHING FOR VACUUM CLEANING AND OTHER $YSTEMS.

APPLICATION FILED MAY27,19I5- Patented July 20, 1920.

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MINIMUM mumum WHHH} lmmmmWmlmmmmmw HERMAN M. UNDERWOOD, OF NEW YORK, N; Y.

WALL SERVICE-BUSHING FOR VACUUM CLEANING AND OTHER SYSTEMS.

Application filed May 27, 1916.

To all whom it may concern:

Be it known that I, HERMAN M. UNDER- wooo, a citizen of the United States, residingat New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Wall Service-Bushings for Vacuum Cleaning and other Systems; and I do declare the following to be a full, clear, and exact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates more particularly to vacuum cleaning systems although adapted to other systems of piping, and it has primarily for its object to provide a coupling orconnection between the line piping and operating tool, for instance a'vacuum-cleaning tool, which will obviate the necessity of running a relatively long line of temporary hose from the outlet of the piping system through the door-way of an apartment to be cleaned, and which also makes it possible to materially lessen the quantity of system piping and number of outlets and their location at present necessary in the installation of vacuum cleaning systems, as under the present invention a single line of piping may serve the purpose of several lines heretofore necessary, and such single line by an appropriate connection with its outlet may be made to serve the purpose of connecting it with a number ofapartments so that several apartments may be simultaneously cleaned from'the same vacuum piping-line through a single outlet, or inlet, thereof.

7 This results in a very material decrease in the cost of installation. It also makes it possible to clean an apartment in a hotel or apartment'building from a temporary hose line in the hallwayor corridor without keeping open the door leading into the apartment or room during the cleaning operation. This is important as it is oftentimes desirable to maintain the privacy of the apartment or room while being cleaned which cannot be done where-the door must be kept open for the passage of the temporary hose leading from the system-piping outlet in the hallway and into the room while the cleaning operation is in progress. The c011- nection or coupling which I provide for Specification of Letters Patent.

' Patented July 20, 1920.

Serial No. 100,393.

making this object practicable is a permanent fixture which is temporarily connected up with and forms a temporary part of the cleaning system when in action and yet at other times provides against access to or observation of the interior of the room or apartment from. the outside during the whole period of time when the fixture is not made use of in the cleaning operation. The invention is susceptible of many modifications but its preferred form is that which will be hereinafter illustrated and described and the essential features of which will be sought to be clearly defined by the claims, reference being had to the accompanying drawings forming a! part hereof and in which:

Figure 1 is a view in elevation taken lengthwise of a hallway illustrating two rooms of a building and showing the manner of running a temporary hose-line from the outlet of a line of the piping system to the fixture of the two rooms through which the cleaning system'is connected with the vacuum cleaning tool (not shown) in the room, a line of the system-piping being shown in dotted lines set to one side of the room partition for'clearness of illustration.

Fig. 2 is a section, through a partition and base-boards, showing in full lines, sectioned at one end, the bushing or fixture which will form a temporary part of the serviceline of the cleaning system, the c10- sures for the two ends of the bushing or fixture being in position thereon;

Fig. 3 is a side elevation of the bushing or fixture itself, with one form of coupling between the bushing and hose line leading from a hallway and also with the hose of a cleaning tool which will be in a room or apartment;

Fig. 4 is a face view of a retaining or lock nut for the bushing or fixture;

Fig. 5 is a vertical cross section through the same; 7

Fig.6 is a section through one of the closure caps for the bushing or fixture;

Fig. 7 is a plan of a Y coupling that may be used to connect the service outlet of the system piping with hose lines in the hallway leading to different apartments or rooms;

Fig. 8 is a front view showingthe Y coupled to the system-piping outlet, with the closing cap of the outlet raised or lifted.

In the drawings the numeral 1 designates a wall partition between a corridor or hallway along which it eXtends besides the way 2 and an apartment or room. Through the partition and the base-boards 4 is passed and secured a tube or .bushing 5, preferably of metal, and which will constitute a fixture serving to 'fo'rm -a part of a service line the other portions oi which may be made up of a hose pipe or line 6 which will lead from the wall bushing or tube 5 to and be connected with the outlet 7 of a vacuum or other system of piping 8 while the other portion of the service line will be made up of a hose or line 9 leading from the opposite end of the wall bushing or tube and to they other end of which, in the case of a vacuum cleaning system, will be connected the vacuum cleaning tool of any approved type (not shown). The wall bushing or tube thus becomes an important element or part of the service line and will remain permanently in position while the other two portions of the line, one within the room and the other outside maybe disconnected and removed when not to be in actual use. One important advantage afforded by this service line bushing or tube is that it enables the service linc'of a vacuum cleaning system to be car ried from. the hallway 'or corridor of a building into the apartment or room to be cleaned" without running the service line through the doorway of the room and necessitating the door to beopen or ajar during the progress of cleaning the room and which for the time being destroys the privacy of the apartment and makes possible the entrance (if intruders whose exclusion is desirable, or where, as in hospitals, the open door would cause a disturbing condition to patients in wards or other rooms caused by the noise of air movement at the operating tool. ating the necessity of dragging a long line of hose from the outlet of the piping system alongthe hallway and into the apartment to be cleaned which is damaging to the hose line as well as to highly finished trim, and casings of doors, and the carpeted floormanual labor involved all of which is overcome by this invention as thehose line in the hallway has merely to be laid alongside thebase-board with one end coupled to the outlet of the piping system and the other end to the wall bushing or tube and the hose line of the cleaning tool coupled to the other end of the wall bushing without the necessity of pulling a long line of hose from one point to another, the 'two sections of the service line beingheld in position by the bushing, and each of which'may be of a relatively short standard length, and thus a second object of, the invention is accom plished. Another object consisting in reducing the quantity of piping necessary for installing a vacuum cleaning system of piping is alsoeflected asunder this invention the Another advantage gained is obvi-i number of suction risers in a building may be reduced because a Y connection may be plugged into a vacuum' valve outlet of a riser in the hallway and the service line hose run to'two rooms or apartments through the wall bushingsor tubes and thus two rooms cleaned at the same time from a single valve outlet. This is a material saving in cost, especially in tall buildings, in installing a vacuum cleaning system.

The wall bushing or tube 5 is preferably 7 of the. service line and thusprevent access to the room or peering thereinto from the hall way andthe transmission'of noises or voices from one to the other when the service lineis uncoupled. The ends of thebushing may be deflected laterally or not as desired but as shownare not deflected. The service line maybe coupled to the opposite ends of'the wall bushing by screw, bayonet, slip or .other form of standard coupling as preferred, although for purposes of illustration merely the slip form of coupling 14; isshown in Fig. 3 of the drawing.

In F igs l, 7 and 8 of the drawing isillus- 7 trated a conventionalform of Y coupling 15 which may be plugged into the vacuum valve outlet 7 of a suctionriser 8 of the piping system and having theservice hose line sections connected to the branches-of the Y and leading. therefrom to the wall bush-' ings 5 of two rooms or apartments so that" two rooms maybe cleaned at the same time by thus being connected to a single suction riser. Thesuction riser 8 is shown in the hall partition l-at one side of the partition 16 between the two rooms merely for purposes of clearer illustration, and the service valve cover 17 is shown raised so as to enable the Y coupling to be plugged into the service valve w The designation 'wall herein is intended to include either a vertical or horizontally extending wall. separating one room from another whether it be a floor or ceiling wall or upright wall between two rooms or a room and hallway or other space.

I have illustrated the wall bushing as provided with caps closing or covering its opposite ends but any other form of closure or covering, hinged or otherwise, may be employed which willcover the ends and be susceptible of manipulation so as to uncover the ends of the bushing for the attachment or coupling of a hose or other line of conduit thereto, uch for instance as a door or doors formed in the wainscoting.

I have illustrated and described with particularity the preferred construction and arrangement of the several parts but they may be varied without departing from the essentials of the invention.

Having described my invention and set forth its merit what I claim is:

1. In a system of piping for vacuum cleaning and other purposes, a wall bushing fixture comprising a tube or conduit embodied in a wall with ends opening at opposite sides of the wall to constitute a portion of a service line, means for separable attachment of other portions of the service line with the opposite ends of the tubular bushing, and detachable coverings for both ends of the tubular bushing said coverings con stituting a normal part of the fixture and serving to prevent communication through the bushing when disconnected from other portions of the service line.

2. In a system of piping for vacuum cleaning and other purposes, a wall bushing I comprising a tube or conduit embodied in a wall with ends opening at opposite sides of the wall to constitute a portion of a service line, a system pipe having an outlet in its length, means for detachably connecting a service line at one end with said outlet of the system pipe and at the other end detachably with the wall bushing, and means for detachably connecting the opposite end of the tubular bushing with a portion of a service line leading to a cleaning tool.

3. In a system of piping for vacuum cleaning and other purposes, a wall bushing comprising a tube or conduit embodied in a wall with ends opening at opposite sides of the wall to constitute a portion of a service line, lock nuts attached to the wall bushing at opposite sides of the wall, and closure caps detachably applied to opposite ends of the bushing.

In testimony whereof I affix my signature in presence of two witnesses.

HERMAN M. UNDERIVOOD.

Witnesses A. B. BURTIS, BERTHA EnnLsTnIN. 

